Steel Bar Specifications

STEEL BAR TYPE	STEEL BAR AMS	STEEL BAR ASTM	STEEL BAR FEDERAL	STEEL BAR CHARACTERISTICS
302 Steel Bar	5636 5637 5688	A276 A313 A314 A479 A493 A580	QQ-S-763	Basic, general purpose type with good corrosion resistance and mechanical properties.
302B Steel Bar		A276 A314 A580		Similar to Type 302 but Si improves resistance to oxidation.
303 Steel Bar	5640	A314 A320 A581 A582		Resistant to atmospheric corrosion resistance with improved mechanical properties.
XM-19 Steel Bar		A276 A479 A580		Nitrogen strengthened austenitic, good corrosion resistance with improved mechanical properties.
304 Steel Bar	5639 5697	A182 A193 A276 A313 A320 A479 A493 A580	QQ-S-763	Low carbon variation of Type 302, minimizes carbide precipitation during welding.
304L Steel Bar	5647	A182 A276 A314 A479 A580	QQ-S-763	Extra-low carbon content eliminates harmful carbide precipitation during welding.
305 Steel Bar	5685 5686	A276 A313 A314 A580	QQ-S-763	Low work-hardening rate, good spinning, deep-drawing, and cold-heading characteristics.
308 Steel Bar		A276 A314 A580		High Cr and Ni produce good heat/corrosion resistance. Used widely for welding rod.
309 Steel Bar		A276 A314 A580	QQ-S-763	High strength and resistance to scaling at high temperatures.
309S Steel Bar	5650	A276 A314 A580		Similar to Type 309 but carbon lowered to minimize carbide precip, and improve weldability. Welding wire.
310 Steel Bar	5651 5694	A182 A276 A314 A580	QQ-S-763	Higher alloy content improves basic characteristics of Type 309
310S Steel Bar		A276 A314 A479 A580		Similar to Type 310 but carbon lowered to minimize carbide precip. And improve weldability. Welding wire.
314 Steel Bar	5652	A271 A314 A580		Si increased to further improve scaling resistance
316 Steel Bar	5648 5690	A182 A193 A276 A313 A314 A320 A479 A493 A580	QQ-S-763	Mo improves general corrosion and pitting resistance and high temperature strength.
316L Steel Bar	5653	A182 A276 A314 A479 A580	QQ-S-763	Extra low carbon version of Type 316. Eliminates harmful carbide precipitation due to welding.
317 Steel Bar		A276 A314 A580	QQ-S-763	Higher alloy content improves basic advantages of Type 316
317L Steel Bar		A182	QQ-S-763	Extra low carbon variation of T-317 for welded structures.
321	5645 5689	A182 A193 A276 A314 A320 A479 A493 A580 A180	QQ-S-763	Stabilized to permit use in 800-1500 F range without harmful carbide precipitation.
347 Steel Bar	5646 5680	A182 A193 A276 A314 A320 A479 A493 A580	QQ-S-763	Characteristics similar to Type 321. Stabilized by Cb and Ta.

TYPE	AMS	ASTM	FEDERAL	CHARACTERISTICS
347F Se Steel Bar	5642			Free-machining variation of Type 347
348 Steel Bar		A182 A276 A314 A320 A479 A580		Similar to type 347 but Ta reduced
403 Steel Bar	5614	A276 A314 A580	QQ-S-763	Special high quality variation of type 410 for highly stressed parts
405 Steel Bar		A276 A314 A580	QQ-S-763
410 Steel Bar	5612 5613 5776	A182 A193 A276 A314 A479 A493 A580	QQ-S-763	Low cost general purpose stainless steel. Wide use where corrosion is not severe.
414 Steel Bar	5615	A276 A314 A580	QQ-S-763	Similar to Type 410 but with somewhat better corrosion resistance and mechanical properties.
416 Steel Bar	5615	A314 A581 A582		Corrosion resistance with rapid, free machinability.
420 Steel Bar	5621	A276 A314 A580	QQ-S-763	Similar to Type 410 but higher carbon produces higher strength and hardness
420F Steel Bar	5620			Free-machining variety of Type 420
420 F Se Steel Bar	5620			Similar to Type 420F. For forging.
422 Steel Bar	5655	A565
430 Steel Bar	5627	A276 A314 A479 A493 A580	QQ-S-763	Most popular of chromium types. Combines good corrosion and heat resistance and mechanical properties.
430F Steel Bar		A314 A581 A582
431 Steel Bar	5628	A276 A314 A580 A493		Best corrosion resistance of standard hardenable chromium types. High mechanical properties.
440A Steel Bar	5631	A276 A314 A580	QQ-S-763	440A, B and C. Series of high carbon types. Same basic composition with varying carbon content. Higher carbon produces higher strength and hardness but lower toughness. All type 440 versions corrosion resistant only in the hardened condition.
440B Steel Bar		A276 A314 A580	QQ-S-763
440C Steel Bar	5630	A276 A314 A493 A580	QQ-S-763
440F Steel Bar	5632			Free-machining version of Type 440C
440F Se Steel Bar	5632
446 Steel Bar		A276 A314 A580	QQ-S-763
17-4 PH Steel Bar	5622 5643	A564		Combines excellent corr. resist., high strength and hardness, low temp. hardening and good fabricating characteristics.
15-5 PH Steel Bar	5856 5659	A564		Similar to 17-4 PH but superior transverse ductility and toughness.
PH 14-8 Mo Steel Bar	5601			Special high strength stainless similar to PH 15-7 Mo but with higher toughness.
PH 15-7 Mo Steel Bar	5657	A564		Similar to 17-7 PH but with higher strength.
PH 13-8 Mo Steel Bar	5629			Excellent transverse properties. Has superior strength and toughness.

Custom Stainless Steel Flat Bar tolerances unique to your application are available upon request